Provide Your Family With Clean, Delicious Tasting Water with the Watts Premier RO Pure Replacement Filter 4-Pack


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Searching for an easy and economical way to have clean, great tasting water flowing from your kitchen faucet? Investing in this 4-pack of replacement filters for the Watts Premier RO Pure and RO Pure Plus reverse osmosis systems is the solution. With just a simple cartridge swap every 6 to 12 months, you’ll enjoy purified water with less impurities and improved taste for drinking and cooking.

There are four different 11 inch filters in this multi-color 4-pack to target a wide range of potential contaminants in your tap water:

Sediment Pre-Filter – Traps silt, dirt, rust particles and other sediment down to 5 microns in size. By filtering out particulate matter, it extends the life of the other filters. Replace every 6 months.

Carbon Block Pre-Filter – Made with premium activated carbon to reduce chlorine taste and odor that leaves an unpleasant “chemically” flavor. It also absorbs other smaller contaminants. Replace every 6 months.

50 GPD RO Membrane – Through a process called reverse osmosis, this semi-permeable membrane filters out total dissolved solids (TDS), heavy metals like lead and mercury, bacteria, viruses, salts, pesticides and other chemicals. It can remove up to 99% of impurities. Replace every 2 to 5 years.

Carbon Block Post-Filter – A final polish to remove any residual tastes or odors and ensure fresh clean water. Replace annually.

The end result is healthier, tastier water from every faucet in your home for drinking, cooking meals, making baby formula, coffee, tea, juice, ice and more – all while removing up to 99% of impurities. Even your pets will love it!

Why Fresh Filters Are Vital for Continued Performance

Over time, the contaminants the filters collect will cause them to clog up and stop working effectively. That’s why it’s important to change them out regularly as Watts Premier recommends for optimal operation. This maintenance is quick and easy.

The filter kit is conveniently compatible with all RO Pure and RO Pure Plus systems. Just twist off the old filter and twist on the replacement. Our push button release design means you don’t have to shut off the water during the swap. Avoid water waste and enjoy peace of mind knowing your RO system is running at full capacity.

High Standards You Can Trust

With over 140 years as a leader in the plumbing industry, Watts understands what it takes to move, treat and conserve water in residential and commercial settings. Their filtration systems are rigorously tested to stringent industry standards including:

  • NSF/ANSI Standard 42 – aesthetic contaminants reduction (taste/odor)
  • NSF/ANSI Standard 53 – health contaminants reduction
  • NSF/ANSI Standard 58 – Reverse Osmosis drinking water treatment systems

You and your family deserve fresh, clean water free of harsh chemicals and heavy metals from the convince of your kitchen tap. Stop buying bottled water and make the Watts Premier RO Pure system and replacement filters part of your healthy home. With proper maintenance, these filters will continue removing the wide range of possible tap water contaminants so you can feel confident in the water you’re drinking. Stay hydrated with your RO system flowing with clean water for better health and taste.

What’s Included

  • 1x Sediment Pre-Filter
  • 1x Carbon Block Pre-Filter
  • 1x 50 GPD RO Membrane
  • 1x Carbon Block Post-Filter

Fits most under sink RO systems from Watts Premier. Easy twist on/off filter replacement.


  • Replaces WP531152 filter set
  • For Watts RO Pure and RO Pure Plus systems
  • Will NOT fit Watts 1/4 turn Kwik Change systems
  • Sediment Pre-Filter: 5 micron, WP105311
  • Carbon Pre-Filter: 5 micron, WP105351
  • RO Membrane: 50 GPD, WP105331
  • Carbon Post-Filter: 5 micron, WP105341
  • 11 inch length filters
  • NSF certified
  • California Proposition 65 Compliant

Give your family the gift of clean, refreshing water straight from your sink faucet. Order the Watts Premier RO Pure Replacement Filter 4-Pack today for continued performance. Simple maintenance for healthy water.


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